<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>计算属性</title>
</head>

<body>
    <div id="app">
        <div>{{birth}}</div>
    </div>

    <script src="./node_modules/vue/dist/vue.js"></script>
    <script>
        var app = new Vue({
            el: '#app',
            data: {
                birthday: 1429032123201
            },
            computed: {
                birth() {
                    const date = new Date(this.birthday);
                    return date.getFullYear() + "-" + date.getMonth() + "-" + date.getDay();
                }
            }
        });
    </script>
</body>

</html>